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LeetCode Daily #4 | 1658. Min Operations to Reduce X to Zero

kawaki

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LeetCode Daily #4 | 1658. Min Operations to Reduce X to Zero

39 просмотров · 6 дней назад
kawaki
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39 просмотров · 6 дней назад
LeetCode Daily — Day 4/365 🚀 Today I solved LeetCode 1658: Minimum Operations to Reduce X to Zero. In this video, I explain THREE different approaches step by step: 🔹 Brute Force — start with the straightforward approach and check the possibilities 🔹 Better Approach — optimize the solution using Binary Search 🔹 Best Approach — use Sliding Window to achieve an O(n) solution I explain the intuition behind each approach, how we improve from one solution to the next, and the complete C++ implementation. 💡 Key Idea of the Best Approach: Instead of removing elements from the left and right, we can think about the problem as finding the longest subarray whose sum is: totalSum - x Then: Minimum Operations = n - length of the longest valid subarray 📌 Problem: https://leetcode.com/problems/minimum... ⏱️ Chapters: 00:00 Brute Force Approach 09:00 Better Approach — Binary Search 20:00 Best Approach — Sliding Window 📚 Topics: • Arrays • Prefix Sum • Binary Search • Sliding Window • Two Pointers • C++ ⏱️ One problem. One video. Every day. This is Day 4 of my 365 Days of LeetCode challenge, where I'm solving and explaining one LeetCode problem every day If you're preparing for DSA, coding interviews, or competitive programming, follow along! #LeetCodeDaily #LeetCode #DSA #SlidingWindow #BinarySearch #CPlusPlus #Coding #Programming #365DaysOfLeetCode